Limit theorem on convergence to the local time of a Brownian excursion

Authors

  • Valeriy I. Afanasyev Steklov Mathematical Institute, Russian Academy of Sciences, 8 Gubkina Street, Moscow 119333, Russia

Keywords:

random walk, conditional Brownian motion, local time of conditional Brownian motions, functional limit theorem

Abstract

An integer random walk {Si, i ≥ 0} with zero drift and finite variance σ2 is investigated. For a random pro-cess that assigns, to a variable u > 0, the number of hits of the specified random walk into the state \[\left\lfloor {u\sigma \sqrt n } \right\rfloor \] up to time n and is considered under the condition that S1 > 0, …, Sn – 1 > 0, Sn ≤ 0, a functional limit theorem concerning convergence in distribution of the process to the local time of a Brownian excursion is proved.

Author Biography

  • Valeriy I. Afanasyev, Steklov Mathematical Institute, Russian Academy of Sciences, 8 Gubkina Street, Moscow 119333, Russia

    doctor of science (physics and mathematics); leading researcher at the department of discrete mathematics

References

  1. Durrett RT, Iglehart DL, Miller DR. Weak convergence to Brownian meander and Brownian excursion. The Annals of Probability. 1977;5(1):117–129. DOI: 10.1214/aop/1176995895.
  2. Afanasyev VI. Local invariance principle for a random walk with zero drift. Journal of Mathematical Sciences. 2022;266(6):850–868. DOI: 10.1007/s10958-022-06145-8.
  3. Afanasyev VI. Convergence to the local time of Brownian meander. Discrete Mathematics and Applications. 2019;29(3):149–158. DOI: 10.1515/dma-2019-0014.
  4. Afanasyev VI. Functional limit theorem for the local time of stopped random walk. Discrete Mathematics and Applications. 2020;30(3):147–157. DOI: 10.1515/dma-2020-0014.
  5. Afanasyev VI. On the local time of a stopped random walk attaining a high level. Proceedings of the Steklov Institute of Mathematics. 2022;316:5–25. DOI: 10.1134/S0081543822010035.
  6. Afanasyev VI. Limit theorem on convergence to the local time of a Brownian bridge. Mathematical Notes. 2024;116(5–6):875–891. DOI: 10.1134/S0001434624110014.
  7. Takács L. Brownian local times. Journal of Applied Mathematics and Stochastic Analysis. 1995;8(3):209–232. DOI: 10.1155/S1048953395000207.
  8. Feller W. An introduction to probability theory and its applications. Volume 2. 2nd edition. New York: John Wiley and Sons; 1971. XXIV, 669 p. (Wiley series in probability and mathematical statistics).
  9. Vatutin VA, Wachtel V. Local probabilities for random walks conditioned to stay positive. Probability Theory and Related Fields. 2009;143(1–2):177–217. DOI: 10.1007/s00440-007-0124-8.
  10. Iglehart DL. Functional central limit theorems for random walks conditioned to stay positive. The Annals of Probability. 1974;2(4):608–619. DOI: 10.1214/aop/1176996607.
  11. Bolthausen E. On a functional central limit theorem for random walks conditioned to stay positive. The Annals of Probability. 1976;4(3):480–485. DOI: 10.1214/aop/1176996098.
  12. Billingsley P. Convergence of probability measures. New York: John Wiley and Sons; 1968. XII, 253 p. (Wiley series in probability and mathematical statistics).
  13. Drmota M. Random trees: an interplay between combinatorics and probability. Vienna: Springer-Verlag; 2009. XVII, 458 p. DOI: 10.1007/978-3-211-75357-6.

Downloads

Published

2026-05-21

Issue

Section

Probability Theory and Mathematical Statistics

How to Cite

[1]
Afanasyev, V.I. 2026. Limit theorem on convergence to the local time of a Brownian excursion. Journal of the Belarusian State University. Mathematics and Informatics. 1 (May 2026), 36–52.